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.:. <br />INTRADEPART MENT TAEMO • • <br />DOH FORM NO ?% <br />i30000~03 <br />Rpi A,~e ,o;s STATE OF COLORADO <br />STATE DEPARTMENT OF HIGHWAYS <br />DIVISION OF HIGHWAYS <br />GRAND JUNCTION, COLORADO K1i02 <br />TO: R.G. Lucas <br />h'ROM: R.K. Barrett <br />RE: Response to Division of Water Resources, Una Pit <br />I>.ATF.: July 11, 1980 <br />iii iiiiiiiiiiiu iii <br />In response to comments from the State Division of Water Resources <br />concerning the Una Pit, vegetative cover is medium to dense. Types <br />are described in Exhibit J. Pumping water from the pit into an ad- <br />jacent settling pond will have an insignificant impact on the Colo- <br />rado River surface and underflow regimes. Dewatering should not im- <br />pact the irrigation ditches. The ditches are above the water table and <br />they are probably "sealed" with fine silt and clay. <br />A.C. RUCKMAN <br />RKB/clc DISTRICT MATERIALS ENGINEER <br />cc: Pit file <br />BY <br />R BERT K. BAR TT <br />DISTRICT III GEOLOGIST <br />